ἀβυσσικός

From LSJ

τὰν ἐπὶ τᾶς → Either with this or on this | Come back victorious or dead

Plutarch, Moralia, 241

Spanish (DGE)

-όν
abisalδύναμις τοῦ ἀβυσσικοῦ θολοῦ Hippol.Haer.5.14.1.